#include <iostream>
#include <vector>
using namespace std;

class Metodos
{
public:
  Metodos();
  vector<double> RK4();
  vector<double> RKF4();
  void dados();
  void set_a(double a);
  void set_b(double b);
  void set_h(double h);
  int get_N();
  double get_h();
  double get_w0();
  double get_a();
private:

  double a,b,w0,h;
  int N;

};